催化剂装填方式对C3馏分催化蒸馏选择加氢过程的影响Effect of Catalyst Loading Pattern on Selective Hydrogenation of C3 Distillates via Catalytic Distillation
高步良,程振民,穆斌,沈建国,贾金明,张濂,袁渭康
摘要(Abstract)：
为考察催化剂在催化蒸馏塔中的装填结构对反应结果产生的影响,进行了停留时间分布(RTD)和反应研究。试验表明,催化剂散装时的液固传质系数是规整装填的3倍;散装时液体流动接近平推流,规整装填时的停留时间分布可用11个全混釜串联来描述。碳三馏分的催化蒸馏选择性加氢研究表明,为使MAPD脱除至15μg.g-1以下,催化剂散装结构的反应效果优于规整装填,其原因在于后者的液固接触效率低于前者并存在一定程度的液相返混。
关键词(KeyWords)： 催化蒸馏;停留时间分布;丙炔;丙二烯;选择性加氢
基金项目(Foundation):
作者(Author): 高步良,程振民,穆斌,沈建国,贾金明,张濂,袁渭康
参考文献(References)：
- [1]TAO Xian-hu(陶贤湖),YANG Bo-lun(杨伯伦),HUA Ben(华贲).Analysis for fields synergy in the reactive distillation process(反应精馏过程中的场协同分析)[J].J Chem Eng of Chinese Univ(高校化学工程学报),2003,17(4):389-394.
- [2]Hearn D.Catalytic distillation machine[P].USP5,266,546,1993.
- [3]Quang D V,Pierre A.Process for manufacturing a tertiary alkyl ether by reactive distillation[P].USP4,847,430,1989.
- [4]Stringaro J P.Catalyzing fixed bed reactor[P].USP5,470,542,1995.
- [5]Kolodziej A.Determination of catalytic packing characteristics for reactive distillation[J].Catalysis Today,2001,69:75-85.
- [6]GAO Bu-liang(高步良),ZHANG Lian(张濂),YUAN Wei-kang(袁渭康).Catalyst packing structure in reactive distillation column(反应蒸馏塔中固体催化剂的装填结构)[J].Modern Chemical Industry(现代化工),2003,23(1):12-15.
- [7]YU Zai-qun(于在群),GAO Bu-liang(高步良),ZHANG Jin-yong(张金永).Selective hydrogenation of C3fraction in a catalytic distillation column(碳三催化蒸馏选择加氢工艺研究)[J].Modern Chemical Industry(现代化工),2001,21(7):23-26.
- [8]ZHANG Jin-yong(张金永),XU Jing-mei(徐金梅),YU Zai-qun,et al(于在群等).Preparation of selective hydrogenation catalyst for steam cracked C3cut used in distillation column(蒸汽裂解碳三馏分催化蒸馏选择加氢催化剂研究)[J].Journal of Fuel Chemistry and Technology(燃料化学学报),2001,S1:233-235.
- [9]Satterfield C N,Eek M W V.Liquid-solid mass transfer in packed beds with downward concurrent gas-liquid flow[J].AIChE Journal,1978,24(4):709-717.
- [10]Goto S,Levec J,Smith J M.Mass transfer in packed beds with two-phase flow[J].Ind Eng Chem Process Des Dev,1975,14(4):473-478.